@Otter - don’t know much about KROX20, but it looks like that website you posted is a commercial blog advertising a " A Step-By-Step Program For Hair Regrowth Without Drugs Or Surgeries" – we’ve all heard that one before, eh?
The website and the product are promoted by their owner “Rob” – no last names, please –
“My name is Rob. I’ve spent ten years researching pattern hair loss pathology. In 2014, I founded Perfect Hair Health to share my research (and success) reversing pattern hair loss.”